3a thread class right-hand 3.470" thread length crowned hexagon head style 20 thread quantity per inch slot drive 0.080 in. dia, 0.130 in. deep in thd end cadmium surface treated unf thread series
2a thread class right-hand 0.772" thread length square head style 20 thread quantity per inch corners of wrenching flats finished to 0.953 in. dia, bearing surface of head undercut 0.050 in. deep passivate surface treated unf thread series
2a thread class right-hand 0.195" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate fastener surface treated unc thread series
2a thread class right-hand 0.195" thread length flat chamfer head style 32 thread quantity per inch passivate fastener surface treated unc thread series
2a thread class right-hand 0.589" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.138" thread length fillister head style 0.046" hole diameter 40 thread quantity per inch passivate screw surface treated unc thread series
2a nut thread a thread class right-hand nut thread a 0.875" nut thread a thread length 30.562" overall length 28 nut thread a thread quantity per inch rod bent 7 deg 45 min 20.500 in. from thd end unf nut thread a thread series
Used on rg-33 auv mrap. 2a thread class right-hand 1.688" thread length hexagon head style 10 thread quantity per inch zinc surface treated unc thread series
2a thread class right-hand 0.563" thread length hexagon head style 20 thread quantity per inch groove in bearing surface of head 0.050 in. deep by 0.187 in. wide cadmium surface treated unc thread series
2a thread class right-hand 0.315" thread length flat chamfer head style 28 thread quantity per inch thd relieved groove 0.030 in. min 0.050 in. max w 0.196 in. min 0.206 in. max dia phosphate manganese or phosphate zinc surface treated unf thread series
